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Lee-Yang theory of quantum phase transitions with neural network quantum states
Physical Review Research, 2023 Predicting the phase diagram of interacting quantum many-body systems is a central problem in condensed matter physics and related fields. A variety of quantum many-body systems, ranging from unconventional superconductors to spin liquids, exhibit ...
Pascal M. Vecsei +2 more
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Quantum stabilizer codes, lattices, and CFTs
Journal of High Energy Physics, 2021 There is a rich connection between classical error-correcting codes, Euclidean lattices, and chiral conformal field theories. Here we show that quantum error-correcting codes, those of the stabilizer type, are related to Lorentzian lattices and non ...
Anatoly Dymarsky, Alfred Shapere
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Lecture notes on normalizing flows for lattice quantum field theories
SciPost Physics Lecture NotesNumerical simulations of quantum field theories on lattices serve as a fundamental tool for studying the non-perturbative regime of the theories, where analytic tools often fall short.
Miranda C. N. Cheng, Niki Stratikopoulou
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Quantum algorithms for open lattice field theory [PDF]
Physical Review A, 2021 Certain aspects of some unitary quantum systems are well-described by evolution via a non-Hermitian effective Hamiltonian, as in the Wigner-Weisskopf theory for spontaneous decay. Conversely, any non-Hermitian Hamiltonian evolution can be accommodated in a corresponding unitary system + environment model via a generalization of Wigner-Weisskopf theory.
Jay Hubisz +2 more
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DCore: Integrated DMFT software for correlated electrons
SciPost Physics, 2021 We present a new open-source program, DCore, that implements dynamical mean-field theory (DMFT). DCore features a user-friendly interface based on text and HDF5 files.
Hiroshi Shinaoka, Junya Otsuki, Mitsuaki Kawamura, Nayuta Takemori, Kazuyoshi Yoshimi
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Field theory of Skyrme lattices in quantum Hall ferromagnets [PDF]
Physical Review B, 1998 We report the application of the nonlinear $σ$ model to study the multi-skyrmion problem in the quantum Hall ferromagnet system. We show that the ground state of the system can be described by a ferromagnet triangular Skyrme lattice near $ν=1$ where skyrmions are extremely dilute.
Abolfath, M., Ejtehadi, M. R.
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Applications of Machine Learning to Lattice Quantum Field Theory
CoRR, 2022 10 pages, contribution to Snowmass ...
Denis Boyda +10 more
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Quantum field theory on a growing lattice [PDF]
Journal of High Energy Physics, 2004 We construct the classical and canonically quantized theories of a massless scalar field on a background lattice in which the number of points--and hence the number of modes--may grow in time. To obtain a well-defined theory certain restrictions must be imposed on the lattice.
Foster, Brendan Z., Jacobson, Ted
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Simulating 2D Effects in Lattice Gauge Theories on a Quantum Computer
PRX Quantum, 2021 Quantum computing is in its greatest upswing, with so-called noisy-intermediate-scale-quantum devices heralding the computational power to be expected in the near future.
Danny Paulson +10 more
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Dynamical Mean-Field Theory for Markovian Open Quantum Many-Body Systems
Physical Review X, 2021 A number of experimental platforms relevant for quantum simulations, ranging from arrays of superconducting circuits hosting correlated states of light to ultracold atoms in optical lattices in the presence of controlled dissipative processes, are ...
Orazio Scarlatella +3 more
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